Today companies often try to fly their "green" colors. However, often what we get is called greenwashing, calling yourself green when your not. A perfect example of this is the recent article in Triple Pundit 43 “Green” Companies Called out for Anti-Environmental Stance
In this case companies which promote themselves as green, but are supporting an organization which is trying to stop the US environmental regulators from regulating greenhouse gases.
Moral: Do not believe everything that companies say.
Update: For an even more disturbing example of greenwashing see the article chevron advocate posing journalist caught sending phony email.